Carrier 58MVC User manual

Brand: Carrier

Model: 58MVC

Category: Fireplaces

Type: User manual

This manual is also suitable for

I n f i n i t y I C S --- M o d e l 5 8 M V C , D i r e c t Ve n t 4 --- W a y M u l t i p o i s e

Condensing Gas F urnace With IdealComfo rtt I dea lH u midityt

Se rvice and Maint e nance Proce d ures

NOTE: Read the entire instruction manual before starting the

installation.

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to follow warnings could result in personal injury,

death, or property damage.

Improper servicing could result in dangerous operation,

serious injury, death, or property damage.

--Before servicing, disconnect all electrical power to

furnace.

--When servicing controls, label all wires prior to

disconnecting. Reconnect wires correctly.

--Verify proper operation after servicing.

WARNING

ELECTRICAL SHOCK, FIRE OR EXPLOSION

HAZARD

Failure to follow this warning could result in property

damage, personal injury, or death.

The ability to properly perform maintenance on this

equipment requires certain expertise, mechanical skills,

tools, and equipment. If you do not possess these, do not

attempt to perform any maintenance on this equipment

other than those procedures recommended in the User’s

Manual.

WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal

injury, death, or property damage.

Never store anything on, near, or in contact with the

furnace, such as:

1. Spray or aerosol cans, rags, brooms, dust mops, vacuum

cleaners, or other cleaning tools.

2. Soap powders, bleaches, waxes or other cleaning

compounds, plastic or plastic containers, gasoline, kerosene,

cigarette lighter fluid, dry cleaning fluids, or other volatile

fluids.

3. Paint thinners and other painting compounds, paper bags,

or other paper products.

WARNING

ama

CERTIFIED

As an ENERGY STAR® Partner,

Carrier Corporation has determined

that this product meets the ENERGY

ST AR® guidelines for energy effi-

ciency.

REGISTERED

ISO 9001:2000

SAFETY CONSIDERATIONS

Recognize safety information. This is the safety --alert symbol

. When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING,

CAUTION, and NOTE. These words are used with the

safety --alert symbol. DANGER identifies the most serious

hazards which will result in severe personal injury or death.

WARNING signifies hazards which could result in personal

injury or death. CAUTION is used to identify unsafe practices

which may result in minor personal injury or product and

property damage. NOTE is used to highlight suggestions which

will result in enhanced installation, reliability , or operation.

Untrained personnel can perform basic maintenance functions

described in User’s Information Manual such as cleaning and

replacing air filters. All other operations must be performed by

trained service personnel. When working on heating equipment,

observe precautions in the literature, on tags, and on labels

attached to or shipped with the unit and other safety precautions

that may apply.

CUT HAZARD

Failure to follow this caution may result in personal injury.

Be careful of sharp metal edges, etc. Use care and wear

protective clothing, gloves, and safety glasses when

removing parts.

CAUTION

Installing and servicing heating equipment can be hazardous due

to gas and electrical components. Only trained and qualified

service agency personnel should install, repair, or service heating

equipment.

Follow all safety codes including the National Fuel Gas Code

(NFGC) NFPA 54--2006/ANSI Z223.1--2006 in the USA, CSA

B149.1--05 National Standard of Canada, Natural Gas and

Propane Installation Codes (NSCNGPIC) in Canada, and the

Installation Standards, Warm Air Heating and Air Conditioning

Systems (NFPA 90B) ANSI/NFPA 90B. Wear safety glasses and

work gloves. Have a fire extinguisher available during start-- up

and adjustment procedures and service calls.

A05085

Fig. 1 -- Multipoise Furnace in Upflow Orientation

GENERAL

This furnace can be installed as a direct vent (2-- pipe) or an

optional ventilated combustion air condensing gas furnace. These

instructions are written as if the furnace is installed in an upflow

application. An upflow furnace application is where the blower is

located below the combustion and controls section of the furnace,

and conditioned air is discharged upward. Since this furnace can

be installed in any of the 4 positions shown in Fig. 2, you may

need to revise your orientation to component location

accordingly .

UPFLOW

DOWNFLOW

HORIZONTAL

LEFT

AIRFLOW

HORIZONTAL

RIGHT

A93041

Fig. 2 -- Multipoise Orientation

ELECTROSTATIC DISCHARGE (ESD)

PRECAUTIONS

UNIT DAMAGE HAZARD

Failure to follow this caution may damage furnace

components.

Failure to follow this caution may damage furnace

components. Electrostatic discharge can affect electronic

components. Take precautions during furnace installation

and servicing to protect the furnace electronic control.

Precautions will prevent electrostatic discharges from

personnel and hand tools which are held during the

procedure. These precautions will help to avoid exposing

the control to electrostatic discharge by putting the furnace,

the control, and the person at the same electrostatic

potential.

CAUTION

1. Disconnect all power to the furnace. DO NOT TOUCH

THE CONTROL OR ANY WIRE CONNECTED TO

THE CONTROL P RIOR TO DISCHARGING YOUR

BODY’S ELECTROSTATIC CHARGE TO GROUND.

2. Firmly touch a clean, unpainted, metal surface of the

furnace chassis which is close to the control. Tools held in

a person’s hand during grounding will be satisfactorily

discharged.

3. After touching the chassis, you may proceed to service the

control or connecting wires as long as you do nothing that

recharges your body with static electricity (for example;

DO NOT move or shuffle your feet, DO NOT touch

ungrounded objects, etc.).

4. If you touch ungrounded objects (recharge your body with

static electricity), firmly touch furnace again before

touching control or wires.

5. Use this procedure for installed and uninstalled

(ungrounded) furnaces.

6. Before removing a new control from its container,

discharge your body’s electrostatic charge to ground to

protect the control from damage. If the control is to be

installed in a furnace, follow items 1 through 5 before

bringing the control or yourself into contact with the

furnace. Put all used AND new controls into containers

before touching ungrounded objects.

7. An ESD service kit (available from commercial sources)

mayalsobeusedtopreventESDdamage.

CARE AND MAINTENANCE

For continuing high performance and to minimize possible

furnace failure, it is essential that maintenance be performed

annually. Consult your local dealer for maintenance and

maintenance contract availability.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Turn off the gas and electrical supplies to the unit before

performing any maintenance or service. Follow the

operating instructions on the label attached to the furnace.

WARNING

58MVC

WASHABLE

FILTER

SUPPORT

FILTER

RETAINER

WASHABLE FILTER OR

DISPOSABLE MEDIA FILTER

IN FILTER CABINET

A00232

Fig. 3 -- Bottom Filter Arrangement

The minimum maintenance that should be performed on this

equipment is as follows:

1. Check and clean or replace air filter each month as needed.

2. Check blower motor and wheel for cleanliness annually.

3. Check electrical connections for tightness and controls for

proper operation each heating season. Service as

necessary.

4. Check for proper condensate drainage. Clean as necessary.

5. Check for blockages in combustion--air and vent pipes

annually.

6. Check burners for cleanliness annually.

A. CLEANING AND/OR REPLACING AIR FILTER

The air filter a rrangement may vary depending on the application

or orientation.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal

injury or death.

Never operate unit without a filter or with the blower access

panel removed. Operating a unit without a filter or with the

blower access door removed could cause damage to the

furnace blower motor. Dust and lint on internal parts of

furnace can cause a loss of ef ficiency.

WARNING

NOTE: If the filter has an airflow direction arrow, the arrow

must point toward the blower .

To clean or replace filters, proceed as follows:

If filter is installed in filter cabinet adjacent to furnace:

1. Turn off electrical supply to furnace.

2. Remove filter cabinet door.

3. Slide filter out of cabinet.

4. If equipped with permanent, washable filter, clean filter by

spraying cold tap water through filter in opposite direction

of airflow. Rinse filter and let dry. Oiling or coating of the

filter is not recommended.

5. If equipped with factory specified disposable media filter,

replace only with a factory specified media filter of the

same size.

FILTER

RETAINER

WASHABLE

FILTER

IN FURNACE

WASHABLE FILTER OR

DISPOSABLE MEDIA

FILTER IN FILTER CABINET

A00233

Fig. 4 -- Filter Installed for Side Inlet

6. Slide filter into cabinet.

7. Replace filter cabinet door.

8. Turn on electrical supply to furnace.

If filter is installed in furnace blower compartment:

1. Turn off electrical supply to furnace.

2. Remove main furnace door and blower access panel.

3. Release filter retainer wire. (See Fig. 3 or 4.)

NOTE: Filters shown in Fig. 3 and 4 can be in furnace blower

compartment or in filter cabinet, but not in both.

4. Slide filter out of furnace.

5. Furnaces are equipped with permanent, washable filter(s).

Clean filter by spraying cold tap water through filter in

opposite direction of airflow.

6. Rinse filter and let dry. Oiling or coating filter is not

recommended.

7. Slide filter into furnace.

8. Recapture filter retaining wire.

9. Replace blower access panel and main furnace door.

10. Turn on electrical supply to furnace.

B. BLOWER MOTOR AND WHEEL MAINTENANCE

To ensure long life, economy, and high efficiency, clean

accumulated dirt and grease from blower wheel and motor

annually.

The inducer and blower motors are pre--lubricated and require no

additional lubrication. These motors can be identified by the

absence of oil ports on each end of the motor.

The following items should be performed by a qualified service

technician.

58MVC

PLUG

CAP

COLLECTOR BOX

DRAIN TUBE (BLUE &

WHITE STRIPED)

INDUCER HOUSING

(MOLDED) DRAIN

UBE (BEHIND

COLLECTOR BOX

DRAIN TUBE)

COLLECTOR BOX

TUBE (PINK)

COLLECTOR BOX

DRAIN TUBE (BLUE)

COLLECTOR BOX

TUBE (GREEN ,

ROUTES BEHIND

INDUCER)

FIELD- INSTALLED

FACTORY- SUPPLIED

DRAIN TUBE

COUPLING (LEFT

DRAIN OPTION)

FIELD- INSTALLED

FACTORY- SUPPLIED

DRAIN TUBE

FIELD- INSTALLED

FACTORY- SUPPLIED

½ - IN. CPVC STREET

ELBOWS (2) FOR

LEFT DRAIN OPTION

FIELD- INSTALLED

FACTORY- SUPPLIED

DRAIN TUBE

COUPLING (LEFT

DRAIN OPTION)

CONDENSATE

TRAP

A07274

Fig. 5 -- Factory--Shipped Upflow Tube Configuration (Shown with Blower Access Panel Removed)

Clean blower motor and wheel as follows:

1. Turn off electrical supply to furnace.

2. Remove main furnace door and blower access panel.

3. Disconnect wires

All factory wires can be left connected, but field

thermostat connections may need to be disconnected

depending on their length and routing.

4. Position control box, transformer, and door switch

assembly to right side of furnace casing.

5. If condensate trap is located in left-- or right--hand side of

furnace casing, proceed to item 6. Otherwise remove trap

and tubing as described below (See Fig. 5.):

a. Disconnect field drain connection from condensate trap.

b. Disconnect drain and relief port tubes from condensate

trap.

c. Remove condensate trap from blower shelf.

6. Remove screws securing blower assembly to blower shelf

and slide blower assembly out of furnace. Detach ground

wire and disconnect blower motor harness plugs from

blower motor.

NOTE: Blower wheel is fragile. Use care.

7. Clean blower wheel and motor by using a vacuum with

soft brush attachment. Be careful not to disturb balance

weights (clips) on blower wheel vanes. Do not bend wheel

or blades as balance will be affected.

8. If greasy residue is present on blower wheel, remove

wheel from the blower housing and wash it with an

appropriate degreaser. To remove wheel:

a. Mark blower wheel location on shaft before disassembly

to ensure proper reassembly.

b. Loosen setscrew holding blower wheel on motor shaft.

NOTE: Mark blower mounting arms and blower housing so

each arm is positioned at the same hole location during

reassembly.

c. Mark blower wheel orientation and cutof f plate location

to ensure proper reassembly.

d. Remove screws securing cutoff plate and remove cutoff

plate from housing.

e. Remove bolts holding motor mounts to blower housing

and slide motor and mounts out of housing.

f. Remove blower wheel from housing.

g. Clean wheel perinstructions on degreaser cleaner. Do not

get degreaser in motor.

9. Reassemble motor and blower wheel by reversing items

8b through 8f. Ensure wheel is positioned for proper

rotation.

NOTE: Be sure to attach ground wire and reconnect blower

harness plugs to blower motor.

10. Reinstall blower assembly in furnace.

11. Reinstall condensate trap and tubing if previously

removed.

a. Reinstall condensate trap in hole in blower shelf.

b. Connect condensate trap drain tubes. See Fig. 5 or tubing

diagram on main furnace door for proper tube location.

(1.) Connect 1 tube (blue or blue and white striped) from

collector box.

(2.) Connect 1 tube (violet or unmarked) from inducer

housing.

(3.) Connect one tube (relief port, green or pink) from

collector box.

c. Connect field drain to condensate trap.

NOTE: Ensure tubes are not kinked or pinched, as this will

affect operation.

12. Reinstall control box, transformer, and door switch

assembly on blower shelf.

13. Reconnect wires.

a. Refer to furnace wiring diagram and connect thermostat

leads if previously disconnected. (See Fig. 21.)

58MVC

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Blower access panel door switch opens 115-- v power to

furnace control. No component operation can occur.

Caution must be taken when manually closing this switch

for service purposes.

WARNING

14. Turn on electrical supply. Manually close blower access

panel door switch. Use a piece of tape to hold switch

closed. Check for proper rotation and speed changes

between heating and cooling by jumpering R to G and R

to Y/Y2 on furnace control thermostat terminals. (See Fig.

15.)

15. If furnace is operating properly, release blower access

panel door switch, replace blower access panel, and

replace main furnace door.

C. CLEANING BURNERS

The following items should be performed by a qualified service

technician. If the burners develop an accumulation of light dirt or

dust, they may be cleaned by using the following procedure:

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

3. Remove burner box cover.

4. Using backup wrench, disconnect gas supply pipe from

furnace gas control valve.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace

component damage.

Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and dangerous

operation.

CAUTION

5. Remove wires from gas valve. Note location for

reassembly.

6. Remove burner box pressure tube from gas valve regulator

fitting.

7. Unplug igniter from harness.

8. Remove igniter leads from slot in manifold grommet.

9. Remove screws that secure manifold to burner box. (See

Fig. 6.)

NOTE: Do not remove burner box from cell panel.

10. Remove manifold, orifices, and gas valve as 1 assembly.

11. Remove screws attaching burner assembly in burner box.

NOTE: Use care when removing and reinstalling burners not to

strike the hot surface igniter.

12. Remove burner assembly from burner box. NOTE: All

burners are attached to burner bracket and can be removed

as 1 assembly.

13. Clean burners with soft brush and vacuum.

14. Reinstall manifold, orifice, and gas valve assembly in

burner box. Ensure manifold seal grommet is installed

properly and burners fit over orifices.

15. Reinsert the igniter wires in the slot in the manifold

grommet, dressing the wires to ensure there is no tension

on the igniter itself. (See Fig. 7.)

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Igniter wires must be securely placed in slot in manifold

grommet or else they could become pinched or severed and

electrically shorted.

WARNING

16. Reconnect wires to gas valve and igniter. Refer to furnace

wiring diagram for proper wire location.

17. Reinstall burner box pressure tube to gas valve regulator

fitting.

18. Reinstall gas supply pipe to furnace gas control valve

using backup wrench on gas valve to prevent rotation and

improper orientation.

GAS

CONTROL

VALVE

THROTTLING

VALVE

MANIFOLD

GASKET

CELL

PANEL

MANIFOLD

MOUNTING

SCREWS

GAS VALVE

REGULATOR

FITTING

A07562

Fig. 6 -- Burner Box Assembly

58MVC

IGNIT ER WIRES MUST

BE PLACED IN THIS SLOT

A05074

Fig. 7 -- Igniter Wire Placement

PRIMARY HX

INLET OPENINGS

A96305

Fig. 8 -- Cleaning Inlet Openings of

Primary Heat Exchangers

PAM

RTV

A93087

Fig. 9 -- Combustion-- air Intake

Housing Gasket Repair

58MVC

A07563

Fig. 10 -- Furnace Pressure and Drain Tubing Diagram

BURNER FLAME

BURNER

MANIFOLD

A89020

Fig. 11 -- Burner Flame

NOTE: Use propane gas resistant pipe dope to prevent gas leaks.

DO NOT use Teflon tape.

FIRE, EXPLOSION, UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal

injury, death, or property damage,.

Gas valve switch MUST be facing forward or tilted slightly.

WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal

injury or death or property damage.

Never test for gas leaks with an open flame. Use a

commercially available soap solution made specifically for

the detection of leaks to check all connections.

WARNING

58MVC

19. Replace burner box cover.

20. Turn on gas and electrical supplies to furnace.

21. Check for gas leaks.

22. Replace main furnace door.

D. CLEANING HEAT EXCHANGERS

The following items should be performed by a qualified service

technician.

Primary Heat

Exchangers

If the heat exchangers get an accumulation of light dirt or dust on

the inside, they may be cleaned by the following procedure:

NOTE: If the heat exchangers get a heavy accumulation of soot

and carbon, both the primary and secondary heat exchangers

should be replaced rather than trying to clean them thoroughly

due to their intricate design. A build -- up of soot and carbon

indicates that a problem exists which needs to be corrected, such

as improper adjustment of manifold pressure, insufficient or poor

quality combustion air , improper vent termination, incorrect size

or damaged manifold orifice(s), improper gas, or a restricted heat

exchanger (primary or secondary). Action must be taken to

correct the problem.

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace

component damage.

Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and hazardous

operation.

CAUTION

3. Disconnect wires or connectors to flame rollout switch,

gas valve, igniter, and flame sensor.

4. Disconnect combustion--air intake pipe from intake

housing.

5. Remove the pressure switch tube from intake housing.

6. Remove screws attaching intake housing to burner box,

and rotate intake housing away from burner box for

removal.

7. Using backup wrench, disconnect gas supply pipe from

furnace gas control valve.

8. Disconnect pressure tubing from gas valve.

9. Remove two screws attaching top filler panel and rotate

upwards to gain access to screws attaching burner box to

cell panel.

10. Remove screws attaching burner box to cell panel. (See

Fig. 6.)

NOTE: Burner box, cover, manifold, gas valve, and burner

assembly should be removed as one assembly.

11. Clean heat exchanger openings with a vacuum and a soft

brush. (See Fig. 8.) NOTE: After cleaning, inspect the heat

exchangers to ensure they are free of all foreign objects

that may restrict flow of combustion products.

12. Reverse items 4 through 10 for reassembly.

NOTE: Be sure burner box gasket is installed between burner

box and cell panel. (See Fig. 6.) If gasket is damaged, replace it.

NOTE: Inspect combustion --air intake housing. If foamed gasket

was removed, check for any damage. If gasket is damaged in any

way, it must be repaired. To repair, remove damaged gasket

section, apply sealant releasing agent such as PAM cooking spray

or equivalent (must not contain corn nor canola oil, halogenated

hydrocarbons nor aromatic content, to prevent inadequate seal

from occurring) to burner box and apply a small bead of G.E.

RTV 162, G.E. RTV 6702, or Dow-- Corning RTV 738 sealant to

edge of combustion-- air intake housing. (See Fig. 9.)

UNIT MAY NOT OPERATE

Failure to follow this caution may result in improper unit

operation.

Failure to attach ground wire to an adequate casing ground

may cause the furnace control to lock out. The ground wire

from the gas valve MUST be attached to the burner box

attachment screw.

CAUTION

13. Refer to furnace wiring diagram and reconnect wires to

flame rollout switch, gas valve, igniter, and flame sensor.

14. Reconnect pressure switch tubes to gas valve and intake

housing. Refer to tube routing label on main furnace door

for proper tube location. (See Fig. 10.) Be sure tubes are

not kinked.

15. Turn on gas and electrical supplies to furnace.

16. Check furnace operation through 2 complete heat

operating cycles. Look through sight glass in burner

enclosure to check burners. Burner flames should be clear

blue, almost transparent. (See Fig. 11.)

17. Check for gas leaks.

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal

injury, death, or property damage.

Never test for gas leaks with an open flame. Use a

commercially available soap solution made specifically for

the detection of leaks to check all connections.

WARNING

18. Replace main furnace door.

E. Secondary Heat Exchangers

NOTE: The condensing side (inside) of the secondary heat

exchangers CANNOT be serviced or inspected. A small number

of bottom outlet openings can be inspected by removing the

inducer assembly. See Flushing Collector Box and Drainage

System section for details on removing inducer assembly.

F. FLUSHING COLLECTOR BOX AND DRAINAGE

SYSTEM

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

3. Disconnect inducer motor and pressure switch wires or

connectors.

4. Disconnect pressure switch tubes.

5. Disconnect vent pipe from inducer housing outlet by

loosening coupling clamp on inducer outlet.

6. Disconnect drain tube from inducer housing. (See Fig.

10.)

NOTE: Ensure the drain tube disconnected from the inducer

housing is higher than the collector box opening or water will

flow out of tube.

7. Remove inducer housing assembly by removing 4 bolts

attaching assembly to cell panel.

58MVC

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace

component damage.

DO NOT use wire brush or other sharp object to inspect or

dislodge materials in secondary heat exchangers as cutting

of the secondary heat exchanger protective coating may

occur. Flush with water only.

CAUTION

8. Flush inside of collector box with water until discharge

from condensate trap is clean and runs freely.

9. Inspect inside area of collector box for any pieces of

foreign materials and remove them if present.

10. Reassemble inducer assembly by reversing items 5 --7.

Tighten the vent coupling clamp screw(s) to 15 in.--lb of

torque.

NOTE: If seal between the inducer housing and the collector

box is damaged in any way, it must be repaired. To repair, apply

sealant releasing agent such as PAM cooking spray or equivalent

(must not contain corn nor canola oil, halogenated hydrocarbons

nor aromatic content, to prevent inadequate seal from occurring)

to inducer housing. (See Fig. 12.) Apply a small bead of G.E.

RTV 162, G.E. RTV 6702, or Dow-- Corning RTV 738 sealant to

groove in collector box.

11. Refer to furnace wiring diagram and reconnect wires to

inducer motor and pressure switches or connectors.

12. Reconnect pressure tubes to pressure switches. See

diagram on main furnace door for proper location of tubes.

Be sure tubes are not kinked. (See Fig. 10.)

13. Turn on gas and electrical supplies to furnace.

14. Check furnace operation through two complete heat

operating cycles. Check area below inducer housing, vent

pipe, and condensate trap to ensure no condensate leaks

occur. If leaks are found, correct the problem.

15. Check for gas leaks.

16. Replace main furnace door.

RTV

PAM

A93081

Fig. 12 -- Gasket on Collector Box

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal

injury , death or property damage.

Never test for gas leaks with an open flame. Use a

commercially available soap solution made specifically for

the detection of leaks to check all connections.

WARNING

G. SERVICING HOT SURFACE IGNITER

BURN HAZARD

Failure to follow this caution may result in personal injury.

Allow igniter to cool before removal. Normal operating

temperatures exceed 2000_.

CAUTION

The igniter does NOT require annual inspection. Check igniter

resistance before removal.

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

3. Disconnect igniter wire connection.

4. Check igniter resistance. Igniter resistance is affected by

temperature. Only check resistance when the igniter is at

room temperature.

a. Using an ohm meter, check resistance across both igniter

leads in connector.

b. Cold reading should be between 40 ohms and 70 ohms.

5. Remove igniter assembly.

a. Remove burner box cover.

b. Remove igniter wires from slot in manifold grommet.

(See Fig. 7.)

c. Using a 1/4--in. driver, remove the single screw securing

theigniter bracket to theburner box bracket(See Fig. 13.)

and carefully withdraw the igniter and bracket assembly

through the front of the burner box without striking the

igniter on surrounding parts. Note that the igniter bracket

has a handle that extends to the front of the burner box

to aid in handling. (See Fig. 13.)

d. Inspect igniter for signs of damage or failure.

BRACKET

IGNITER

9/16˝

11/16˝

EXTENDED IGNITER

BRACKET HANDLE

IGNITER BRACKET

MOUNTING SCREW

A05075

Fig. 13 -- Igniter Bracket

58MVC

UNIT DAMAGE HAZARD

Failure to follow this caution may result in premature

failure of the igniter.

The igniter is fragile. DO NOT allow it to hit burner box

parts while removing or replacing it.

CAUTION

e. If replacement is required, replace igniter on igniter

bracket and then install assembly into burnerbox toavoid

damage to the igniter.

6. To replace igniter and bracket assembly, reverse items 5a

through 5d.

7. Reconnect igniter wire connection a nd insert the igniter

wires in the slot in the manifold grommet, dressing the

igniter wires to ensure there is no tension on the igniter

itself. (See Fig.7.)

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal

injury or death.

Igniter wires must be securely placed in slot in manifold

grommet or else they could become pinched or severed and

electrically shorted.

WARNING

2-5/32˝

A04181

Fig. 14 -- Igniter

8. Reinstall burner box cover.

9. Turn on gas and electrical supplies to furnace.

10. Verify igniter operation by initiating control board

self--test feature or by cycling thermostat.

11. Replace main furnace door.

H. ELECTRICAL CONTROLS AND WIRING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

There may be more than 1 electrical supply to the unit.

Check accessories and cooling unit for additional electrical

supplies.

WARNING

The electrical ground and polarity for 115-- v wiring must be

maintained properly. Refer to Fig. 15 for field wiring information

and to Fig. 21 for unit wiring information.

NOTE: If the polarity is not correct or furnace is not properly

grounded, the STATUS LED on the furnace control will flash

rapidly and prevent the furnace from operating. The control

system also requires an earth ground for proper operation of the

furnace control and flame sensor .

The 24-- v circuit contains an automotive-- type, 3-- amp fuse

located on the furnace control. (See Fig. 16.) Any direct shorts of

the 24--v wiring during installation, service, or maintenance will

cause this fuse to blow . If fuse replacement is required, use ONLY

a fuse of identical size. The furnace control LED will flash status

code 24 when fuse needs to be replaced.

With power to the unit disconnected, check all electrical

connections for tightness. Tighten all screws on electrical

connections. If any smoky or burned connections are found,

disassemble the connection, clean all parts, strip wire, and

reassemble properly and securely.

Reconnect electrical supply to unit and observe unit through 1

complete operating cycle and check for proper operation.

I. CHECKING HEAT TAPE OPERATION

(IF APPLICABLE)

In applications where the ambient temperature around the furnace

is 32_F or lower, freeze protection measures are required. If this

application is where heat tape has been applied, check to ensure it

will operate when low temperatures are present.

NOTE: Heat tape, when used, should be wrapped around the

condensate drain trap and drain line. There is no need to use heat

tape within the furnace casing. Most heat tapes are temperature

activated, a nd it is not practical to verify the actual heating of the

tape. Check the following:

1. Check for signs of physical damage to heat tape such as

nicks, cuts, abrasions, gnawing by animals, etc.

2. Check for discolored heat tape insulation. If any damage

or discolored insulation is evident, replace heat tape.

3. Check that heat tape power supply circuit is on.

UNIT AND PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in furnace

component failures or water property damage.

If this furnace is to be operated in an unconditioned space

where the ambient temperatures may be 32_F(0_C) or

lower , freeze protection measures must be taken. See

CONDENSATE DRAIN PROTECTION section of

Installation, Start--up, and Operating Instructions. (See Fig.

17.)

CAUTION

58MVC

115-VOLT FIELD-

SUPPLIED

FUSED

DISCONNECT

JUNCTION

BOX

CONTROL

BOX

24-VOLT

TERMINAL

BLOCK

THREE-WIRE

HEATING-

ONLY

FIVE

WIRE

NOTE 2

NOTE 1

1-STAGE

THERMOSTAT

TERMINALS

FIELD-SUPPLIED

FUSED DISCONNECT

CONDENSING

UNIT

FURNACE

COM

WC Y RG

GND

FIELD 24-VOLT WIRING

FIELD 115-, 208/230-, 460-VOLT WIRING

FACTORY 24-VOLT WIRING

FACTORY 115-VOLT WIRING

Connect Y/Y2-terminal as shown for proper operation.

Some thermostats require a "C" terminal connection as shown.

If any of the original wire, as supplied, must be replaced, use

same type or equivalent wire.

208/230- OR

460-VOLT

THREE

PHASE

208/230-

VOLT

SINGLE

PHASE

WHT

BLK

WHT

BLK

A95236

W/W1

Y/Y2

NOTES: 1.

A95236

Fig. 15 -- Field Wiring

J. WINTERIZING

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace

component damage.

Freezing condensate left in the furnace may damage the

furnace.

CAUTION

If the furnace will be off for an extended period of time in a

structure where the temperature will drop to 32_F(0_C) or

below, winterize as follows:

1. Turn off electrical supply to furnace.

2. Remove main furnace door.

3. Disconnect upper inducer housing drain connection cap

from inducer housing. (See Fig. 18.)

4. Connect field-- supplied 1/2--in. I.D. inducer housing tube

to upper inducer housing drain connection.

5. Insert funnel in tube and pour one quart of antifreeze,

propylene glycol (RV, swimming pool antifreeze, or

equivalent) into funnel/tube until it is visible at point

where condensate enters open drain. (See Fig. 19.)

UNIT DAMAGE HAZARD

Failure of plastic components may occur.

Do not use ethylene glycol (Prestone II antifreeze/coolant or

equivalent automotive type).

CAUTION

6. Replace drain connection cap and clamp to inducer

housing.

7. Replace main furnace door.

8. Propylene glycol need not be removed before restarting

furnace.

WIRING DIAGRAMS

See Fig. 15, 16 and 21 for the Deluxe 4 -- Way Multipoise Furnace

wiring diagrams.

TROUBLESHOOTING

Use the troubleshooting guide, the status code LED on the

furnace control and the component test to isolate furnace

operation problems.

A more detailed troubleshooting guide is available from your

distributor.

For an explanation of status codes, refer to service label located

on back of main furnace door (See Fig. 20.)

The furnace control stores all status codes for a period of 72

hours, regardless of 115--v or 24 --v power interruption.

NOTE: Removing blower access panel opens blower access

panel door switch and terminates 115 -- v power to furnace control.

Before removing blower access panel or turning of f 115--v power,

look into blower access panel sight glass for current LED status.

1. To retrieve status code, proceed with the following:

NOTE: NO thermostat signal may be present at furnace control

and all blower time delay periods must be completed.

a. Leave 115--v power to furnace turned on.

b. Remove main furnace door.

c. Look into blower access panel sight glass for current LED

status code.

d. Remove blower access panel.

e. Turn setup switch SW1-- 1 to ON position. (See Fig. 16

or 21 for location.)

f. Manually close blower access panel door switch. Use a

piece of tape to hold switch closed.

58MVC

ELECTRICAL SHOCK, UNIT MAY NOT OPERATE

HAZARD

Failure to follow this warning could result in personal

injury or death.

Blower access panel door switch opens 115-- v power to

furnace control. No component operation can occur unless

switch is closed. Caution must be taken when manually

closing this switch for service purposes.

WARNING

g. The AMBER LED will flash the status codes in the order

of occurence. Record status codes until status code 11

flashes (1 short and 1 long).

h. After status code #11 flashes, the status codes will repeat

until setup switch SW1--1 is turned off.

i. Remove tape to release blower access panel door switch

and replace blower access panel.

j. Operate furnace through 1 heat cycle to test for proper

operation and check LED status.

k. If furnace is operating properly and LEDs indicateproper

operation, replace main furnace door.

2. Status codes are erased after 72 hours or they can be

manually erased by performing the following procedure:

a. Look into blower access panel sight glass for current LED

status code.

b. Remove blower access panel.

c. Turn setup switch SW1-- 1 to ON position. (See Fig. 16

or 21 for location.)

d. Jumper thermostat terminals R, W/W1, and Y/Y2 on

furnace control.

e. Manually close blower access panel door switch. Use a

piece of tape to hold switch closed.

f. After status code 11 flashes for at least 2 times, remove

R, W/W1, and Y /Y2 jump ers.

g. TurnsetupswitchSW1--1toOFFposition.

h. Remove tape to release blower access panel door switch

and replace blower access panel.

i. Operate furnace through 1 heat cycle to check for proper

operation and check LED status.

j. If furnaceis operating properly and LEDs indicateproper

operation, replace main furnace door.

3. The control can also assist in troubleshooting by

performing a Component Test. The Component Test will

functionally operate all furnace components, except the

gas valve.

NOTE: The component test feature will not operate if the

furnace control is receiving any thermostat signals or until all

time delays have expired.

a. To initiate Component Test proceed with the following:

(1.) Leave 115--v power to furnace turned on.

(2.) Remove main furnace door.

(3.) Remove blower access panel.

(4.) TurnsetupswitchSW1--6toONposition.

(5.) Manually close blower access panel door switch.

Use a piece of tape to hold switch closed.

b. When items (1) through (5) above have been completed,

the following will occur:

(1.) Inducer motor operates at medium speed through

step (3), then turns off.

(2.) After waiting for 15 sec, hot surface igniter is

energized for 15 sec, then de--energized.

(3.) Main blower motor operates at midrange airflow for

15 sec, then turns of f.

(4.) After component operation test is completed, 1 or

more fault codes (11, 25, 41, or 42) will flash. See

service label on back of main furnace door or Fig.

20 for explanation of codes.

NOTE: To repeat component test, turn setup switch SW1 -- 6 to

OFF and then back to ON.

c. After component test, perform the following:

(1.) Remove tape to release blower access panel door

switch and turn setup switch SW1--6 to OFF

position.

(2.) Replace blower access panel.

(3.) Operate furnace through 1 heat cycle to check for

proper operation and check LED status.

(4.) If furnace is operating properly and LEDs indicate

proper operation, replace main furnace door.

58MVC

24-V THERMOSTAT

TERMINALS

PL2 – HOT SURFACE

IGNITER & INDUCER

MOTOR CONNECTOR

115-VAC (L2) NEUTRAL

CONNECTIONS

115-VAC (L1) LINE

VOLTAGE CONNECTIONS

EAC-1 TERMINAL

(115 -VAC 1.0 AMP MAX.)

PL1 – LOW VOLTAGE MAIN

HARNESS CONNECTOR

PL3 – ECM BLOWER

HARNESS

CONNECTOR

RANSFORMER 24-VAC

CONNECTIONS

3-AMP FUSE

STATUS AND COMM

LED LIGHTS

SW1 SETUP

SWITCHES AND

BLOWER OFF-

DELAY

MODEL PLUG

CONNECTOR

AIR CONDITIONING

(A/C) AIRFLOW

SETUP SWITCHES

USER INTERFACE

OR ADVANCED

PRODUCT

MONITOR

CONNECTOR

CONTINUOUS FAN

(CF) AIRFLOW

SETUP SWITCHES

OAT

CONNECTOR

HUMIDIFIER

TERMINAL (24-VAC

0.5 AMP MAX.

ACRDJ – AIR

CONDITIONING

RELAY DISABLE

JUMPER

FLASH

UPGRADE

CONNECTOR

(FACTORY

ONLY)

SW4 SETUP

SWITCHES

BOARD SERIAL

NUMBER

EXAMPLE:

V12 HK42FZ022 3407

SOFTWARE

VERSION

NUMBER

DATE

CODE

PART

NUMBER

A07422

Fig. 16 -- Variable Capacity Furnace Control

58MVC

F MINIMUM INSTALLED

AMBIENT OR FREEZE

PROTECTION REQUIRED

A93058

Fig. 17 -- Freeze Pr otection

A99118

Fig. 18 -- Inducer Housing Drain Tube

A99119

Fig. 19 -- Funnel in Drain Tube and Antifreeze

Running Through Trap

58MVC

A07564

Fig. 20 -- Service Label

58MVC

A06677

Fig. 21 -- Wiring Diagram

58MVC

Is AMBER LED stat us light on?

Is there 24V at SEC-1 and SEC-2?

Is there 115V at L1 and L2?

Replace furnace control.

Is door switch closed?

Replace transformer.

Replace door switch.

Is there 115V going to switch?

Close door switch.

Is circuit breaker closed?

Check for continuity in wire from circuit

breaker to furnace.

Close circuit breaker and go back to

START.

Is AMBER LED status

light blinking

rapidly without a pause?

Check for correct line voltage polarity. If

units are twinned, check for proper low-

voltage (24V) transformer phasing.

Is AMBER LED status light blinking

ON/OFF slowly with a combination of

Determine status code. The status code

determined by the number of short

To recall previous status codes disconnect the R

thermostat connection, reset power, and put setup

switch SW1-1 in the ON position. The AMBER LED

will repeat. Status codes

are erased after 72 hours or can be manually erased

by putting setup switch SW1-1 in the ON position

and jumpering R, W/W1, and Y/Y2 simultaneously

setup switch SW1-1 in the OFF position.

Was there a previous status code other

than #11?

Go to section below for the status code

Does the control respond to W/W1, W2,

Y1, Y/Y2, and G (24V) thermostat

signals?

Run system through a low-heat, medium-

heat, high-heat, or cooling cycle to check

operation. Status codes are erased after

72 hours or can be manually erased by

putting setup switch SW1-1 in the ON

position and jumpering R, W/W1, and

Y/Y2 simultaneously until status code

Is 24V present at W/W1, W2, Y1, Y/Y2 or

G thermostat terminals on the furnace

control?

Check room thermostat or

interconnecting cable.

Disconnect all the thermostat wires from

the furnace control.

Does the problem repeat when using a

jumper wire?

Replace furnace control.

The thermostat is not compatible with the

furnace control. Either install a ballast

resistor, connect the Com24V thermostat

terminal to the thermostat, or replace the

thermostat.

YES

SEY SEY SEY

YES

START

YES

NONO

Troubleshooting Guide

A07581

58MVC

11 NO PREVIOUS CODE – Status codes are

erased after 72 hours or can be manually

erased by putting setup switch SW1-1 in

the ON position and jumpering R, W/W1,

and Y/Y2 simultaneously until status code

#11 is ashed. Run system through a low-

heat, high-heat, or cooling cycle to check

system.

12 BLOWER ON AFTER POWER UP –

(115V OR 24V) – Normal operation.

Blower runs for 90 seconds, if unit is

powered up during a call for heat (R-

W/W1 closed) or when (R-W/W1 opens)

during the blower on-delay period.

13 LIMIT CIRCUIT LOCKOUT – Lockout

occurs if the limit or

ame rollout switch is

open longer than 3 minutes or 10

successive limit trips occurred during high-

heat. Control will auto-reset after 3 hours.

See code 33.

14 IGNITION LOCKOUT – System failed to

ignite gas and prove ame in 4 attempts.

Control will auto-reset after 3 hours. See

status code 34.

21 GAS HEATING LOCKOUT – Turn o

power and wait 5 minutes to retry. Check

for:

- Stuck closed gas valve relay on control.

- Miswire or short to gas valve wire.

22 ABNORMAL FLAME-PROVING SIGNAL

Flame is proved while gas valve is de-

energized. Inducer will run until fault is

cleared. Check for:

- Stuck open or leaky gas valve.

23 PRESSURE SWITCH DID NOT OPEN –

Check for:

- Obstructed pressure tube.

- Pressure switch stuck closed.

24 SECONDARY VOLTAGE FUSE IS OPEN

Check for:

- Short circuit in secondary voltage (24V)

wiring including thermostat leads.

Disconnect thermostat leads to isolate

short circuit.

32 LOW-HEAT PRESSURE SWITCH DID

NOT CLOSE OR REOPENED – If opens

during blower on-delay period, blower will

come on for the selected blower o-delay.

If opens within 5 minutes after ignition the

next heating cycle will be restricted to

high-heat. Check for:

- Proper vent sizing.

- Low inlet gas pressure (if LGPS used).

- Restricted combustion air supply.

- Disconnected or obstructed pressure

tubing.

- Defective or miswired pressure switches

- Excessive wind. If problem persists turn

setup switch SW1-3 ON.

- Plugged condensate drain.

- Water in vent piping, possible sagging

33 LIMIT CIRCUIT FAULT – Indicates the

limit or ame rollout switch is open or the

furnace is operating in high-heat only

mode due to 2 successive low- or

medium-heat limit trips. Blower will run for

4 min. or until open switch remakes

whichever is longer. If open longer than 3

min., code changes to lockout #13. If

open less than 3 min.

status code #33

continues to ash until blower shuts o.

Flame rollout switch requires manual

reset. Check for:

- Proper rear air bae.

- Loose blower wheel.

- Defective switch or connections.

- Improper low- or medium-heat gas input

adjustment.

- Improper or misaligned limit and/or limit

shield.

- Stuck high-heat solenoid in gas valve.

34 IGNITION PROVING FAILURE – If ame is

not sensed during the trial for ignition

period, the control will repeat the ignition

sequence 3 more times before lockout #14

occurs. If ame signal is lost during the

blower on-delay period, blower will come on

for the selected blower o-delay. Check

the following items rst before proceeding

to the next step.

- Gas valve turned o.

- Manual shut-o valve.

- Green/Yellow wire MUST be connected

to furnace sheet metal.

- Flame sensor must not be grounded.

To determine whether the problem is in the

gas valve, igniter, or ame sensor the

system can be operated in component test

mode. To check the igniter remove the R

thermostat connection from the control,

reset power, and put setup switch SW1-6 in

the ON position to start the component test.

Does the igniter glow orange/white by the

end of the 15 second warm-up period?

Unplug igniter harness from control and

repeat component test by turning setup

switch SW1-6 OFF and then back ON.

Check for 115V between pin 3 and

NEUTRAL-L2 on the control. Was 115V

present for the 15 second period?

Check connections and retry.

If current is near typical value

(4.0-6.0 nominal) and burners

will not stay on, repeat check

in high-heat. If burners will

still not stay on replace

control. If burners operate in

high-heat then switch to

medium-heat, check manifold

pressure. If OK, check

burner carryover and ame

sensor location.

Clean ame sensor with ne steel wool

and recheck current. Nominal current is

4.0 to 6.0 microamps.

Is current near typical value? Replace electrode.

Will main burners ignite and stay on? Replace furnace control.

Fixed.

YES

15 BLOWER MOTOR LOCKOUT – Indicates

the blower failed to reach 250 RPM or the

blower failed to communicate within 30

seconds after being turned ON in two

successive heating cycles. Control will

auto-reset after 3 hours. See code 41.

45 CONTROL CIRCUITRY

LOCKOUT Auto-reset

after 1 hour lockout due

to:

- Flame circuit failure.

- Gas valve relay stuck

open.

- Software check error.

Reset power to clear

lockout. Replace control

if code repeats.

Replace furnace control.

Check for continuity in the

harness and igniter. Replace

defective component.

Reconnect the R thermostat lead and set

thermostat to call for heat. Connect

voltmeter across gas valve connections.

Does gas valve receive 24V?

Does gas valve open and allow gas to

ow?

Do the main burners ignite?

Do the main burners stay on?

Allow unit to drop to low-heat,

and check manifold pressure.

Repeat test to check for

intermittent operation.

Check that all gas valves are

turned on. Replace valve.

Check connections. If OK,

replace control.

Check for:

- Inadequate ame carryover

or rough ignition.

- Low inlet gas pressure.

- Proper ring rate.

- Air leakage around igniter

bracket.

Repeat call for heat and check ame

sensor current during trial for ignition

period. Is the DC microamps below 0.5?

YES

43 LOW-HEAT PRESSURE SWITCH OPEN

WHILE MEDIUM-HEAT PRESSURE

SWITCH IS CLOSED - Check for:

- Low-heat pressure switch stuck open.

- Disconnected or obstructed pressure

tubing.

- Improper pressure switch wiring.

- Low inlet gas pressure (if LGPS used).

- Plugged condensate drain.

- Water in vent piping, possible sagging

pipe.

A07582

58MVC

25 INVALID MODEL SELECTION OR

SETUP ERROR – If status code 25 only

ashes 4 times on power-up the control is

missing its model plug PL4 and is

defaulting to the model selection stored in

memory. If status code 25 ashes

continuously it could indicate any of the

following:

- Model plug PL4 is missing and there is

no valid model stored in permanent

memory. This will happen if you forget

to install the model plug PL4 on a

service replacement control.

- Thermostat call with SW1-1 ON.

- Thermostat call with SW1-6 ON.

- SW1-1 and SW1-6 both ON.

- Two dierent furnace models twinned.

- Service replacement control does not

recognize new model plugs HK70EZ017

thru HK70EZ021. Need board software

version V12 or later.

31 MEDIUM-HEAT PRESSURE SWITCH OR

HPSR RELAY DID NOT CLOSE OR

REOPENED - Check for:

- HPSR relay may be defective.

- See status code 32.

41 BLOWER MOTOR FAULT – Indicates the

blower failed to reach 250 RPM or the

blower failed to communicate within the

prescribed time limits. Thirty seconds

after being turned ON or ten seconds

during steady-state operation. Turn power

o and check the following items rst

before proceeding to the next step.

- Rubbing blower wheel.

- Loose blower wheel.

- Wiring from furnace control to blower

motor.

Remove the R thermostat connection from

the furnace control, disconnect both

connectors from the blower motor PL13

and PL14. Does the blower wheel turn

freely?

Replace the blower control module attached to

the blower motor. Follow the instructions with

the blower control module to make sure the

entire blower motor does not need to be

replaced.

Turn power back on. Is there 115VAC at

PL14-5 and PL14-4?

You have an open wire or bad

terminal on either the BLACK or

WHITE power leads between

the furnace control and the

blower motor. If you have a

power choke disconnect it and

check continuity.

YES

Is there 12-VDC at PL13-1 RED (+) and

PL13-4 GREEN (-)?

YES

Is there 12-VDC at PL3-1 RED (+) and

PL3-2 GREEN (-)?

Replace the furnace control.

You have an open wire or bad

terminal on either the RED or

GREEN wire between the

furnace control and the blower

motor.

YES

Is there 5-VDC at PL13-2 YELLOW (+)

and PL13-4 GREEN (-)?

Is there 5-VDC at PL3-3

YELLOW (+) and PL3-2

GREEN (-)?

You have an open wire or bad

terminal on the YELLOW wire

between the furnace control and

the blower motor.

YES

The voltage just measured should be

very stable and should not uctuate more

than .02-VDC. If the voltage uctuates

more than this get a dierent voltmeter

before proceeding.

Turn power o, disconnect PL13 and

PL14 from the blower motor, then turn

power back on. Connect a DC voltmeter

across PL13-3 BLUE (+) and PL13-4

GREEN (-). The voltage should be near

0-VDC but it will uctuate briey several

times a second. If you have an analog

voltmeter the needle will briey go high

several times a second. If you have a

digital voltmeter with a bar graph it will

show a large change in magnitude on the

bar graph several times a second. If you

have a standard digital voltmeter it will

show a brief uctuation in voltage and the

magnitude may vary depending on the

voltmeter used.

Does the voltage uctuate as described in the

previous step?

Connect a DC voltmeter across PL3-4 BLUE

(+) and PL3-2 GREEN (-). Does the voltage

uctuate as described two steps back?

You have an open wire or bad terminal on the

BLUE wire between the furnace control and the

blower motor.

Replace the furnace control.

YES

Turn power o, reconnect PL13 and

PL14 to the blower motor, then turn

power back on. Connect a DC voltmeter

across PL3-3 YELLOW (+) and PL3-2

GREEN (-). Does the voltage uctuate

more than it did in the previous step?

YES

Replace the blower control module attached to

the blower motor. Follow the instructions with

the blower control module to make sure the

entire blower motor does not need to be

replaced.

42 INDUCER MOTOR FAULT – Indicates the

inducer motor has not started within 20

seconds after a call for heat, the inducer

motor RPM is outside its valid range of

operation, or the inducer RPM signal was

lost for 5 seconds during operation.

Check for:

- Proper vent sizing.

- Failed inducer motor.

- Restricted combustion air supply.

- Improper motor wiring.

A07583

58MVC

SERVICE TRAINING

Packaged Service Training programs are an excellent way to increase your

knowledge of the equipment discussed in this manual, including:

• Unit Familiarization • Maintenance

• Installation Overview • Operating Sequence

A large selection of product, theory, and skills programs is available, using popular

video-based formats and materials. All include video and/or slides, plus companion

book.

Classroom Service Training plus "hands-on" the products in our labs can mean

increased confidence that really pays dividends in faster troubleshooting, fewer

callbacks. Course descriptions and schedules are in our catalog.

CALL FOR FREE CATALOG 1-800-644-5544

[ ] Packaged Service Training [ ] Classroom Service Training

Manufacturer reserves the right to change, at any time, specificati ons and designs without notice and without obligations.

Catalog No: 58MVC---01SM

Replaces: New

Printed in U.S.A. Edition Date: 07/07

58MVC

Carrier 58MVC User manual

Brand: Carrier

Model: 58MVC

Category: Fireplaces

Type: User manual

This manual is also suitable for

Download PDF

report

Carrier 58MVC User manual

This manual is also suitable for

Carrier 58MVC User manual

Related papers

Other documents